A similar Qianlong-marked celadon-glazed double-gourd vase with a cover from the Nanjing Museum was included in The Exhibition of Qing Imperial Porcelain of the Kangxi, Yongzheng, Qianlong Reigns, Hong Kong, 1995, and illustrated in the Catalogue, no. 69; another celadon-glazed example is illustrated in Chinese Porcelain: The S. C. Ko Tianminlou Collection, vol. I, Hong Kong, 1987, pl. 160. A slightly smaller celadon example (19.8 cm. high) is illustrated by R. Krahl, Chinese Ceramics in the Meiyintang Collection, Vol. 2, London, 1994, pl. 864. The National Palace Museum in Taipei has a lobed double-gourd vase in a sky-blue glaze, illustrated in Catalog of the Special Exhibition of K'ang-hsi, Yung-cheng and Ch'ien-lung Porcelain Ware from the Ch'ing Dynasty in the National Palace Museum, Taipei, 1986, pl. 66.